Bile acids, which are normally present in the digestive tract, stimulate the colon. Bile acid binding agents prevent bile acids from stimulating the colon, which slows the passage of stools and relieves diarrhea. It is not common for bile to cause this problem, but if it does, these medicines can help. They usually are not tried soon after a person is diagnosed. But if symptoms don't improve with usual treatment, they may be tried.
Bile acid binding agents, such as cholestyramine (such as Prevalite), are mixed with water and may be taken several times a day.
Many people with IBS say they're extremely gassy. It’s not clear why. They don’t seem to make more gas than anyone else, but it seems to bother them more. Studies have found people with IBS have trouble getting rid of gas, possibly because of problems with how the nerves and muscles in their gut work. Their intestines also may be extra sensitive. Even a normal amount of gas may cause pain.
Dealing with IBS and gas is hard. Symptoms vary widely from one person to the next, and no single treatment...